Direct observation of a non-crystalline state of Li2S–P2S5 solid electrolytes

Abstract There are two types of solid electrolytes which has been recently expected to be applied to all-solid-state batteries. One is the glasses characterized by an amorphous state. The other is the glass ceramics containing crystalline in an amorphous matrix. However, the non-crystalline state of...

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Autores principales:	Hirofumi Tsukasaki, Shigeo Mori, Hideyuki Morimoto, Akitoshi Hayashi, Masahiro Tatsumisago
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9d6c6836c41540fbb4a2197e6d9829d0
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spelling	oai:doaj.org-article:9d6c6836c41540fbb4a2197e6d9829d02021-12-02T15:05:10ZDirect observation of a non-crystalline state of Li2S–P2S5 solid electrolytes10.1038/s41598-017-04030-y2045-2322https://doaj.org/article/9d6c6836c41540fbb4a2197e6d9829d02017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04030-yhttps://doaj.org/toc/2045-2322Abstract There are two types of solid electrolytes which has been recently expected to be applied to all-solid-state batteries. One is the glasses characterized by an amorphous state. The other is the glass ceramics containing crystalline in an amorphous matrix. However, the non-crystalline state of glasses and glass ceramics is still an open question. It has been anticipated that sea-island and core-shell structures including crystalline nanoparticles have been proposed as candidate models for glass ceramics. Nevertheless, no direct observation has been conducted so far. Here we report the non-crystalline state of Li2S–P2S5 glasses and glass ceramics, and the crystallization behavior of the glasses during heating via direct transmission electron microscopy (TEM) observation. High resolution TEM images clearly revealed the presence of crystalline nanoparticles in an amorphous region. Eventually we suggest that the precipitation and connection of crystalline nanoparticles in an amorphous matrix are key to achieving high ionic conductivity.Hirofumi TsukasakiShigeo MoriHideyuki MorimotoAkitoshi HayashiMasahiro TatsumisagoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hirofumi Tsukasaki Shigeo Mori Hideyuki Morimoto Akitoshi Hayashi Masahiro Tatsumisago Direct observation of a non-crystalline state of Li2S–P2S5 solid electrolytes
description	Abstract There are two types of solid electrolytes which has been recently expected to be applied to all-solid-state batteries. One is the glasses characterized by an amorphous state. The other is the glass ceramics containing crystalline in an amorphous matrix. However, the non-crystalline state of glasses and glass ceramics is still an open question. It has been anticipated that sea-island and core-shell structures including crystalline nanoparticles have been proposed as candidate models for glass ceramics. Nevertheless, no direct observation has been conducted so far. Here we report the non-crystalline state of Li2S–P2S5 glasses and glass ceramics, and the crystallization behavior of the glasses during heating via direct transmission electron microscopy (TEM) observation. High resolution TEM images clearly revealed the presence of crystalline nanoparticles in an amorphous region. Eventually we suggest that the precipitation and connection of crystalline nanoparticles in an amorphous matrix are key to achieving high ionic conductivity.
format	article
author	Hirofumi Tsukasaki Shigeo Mori Hideyuki Morimoto Akitoshi Hayashi Masahiro Tatsumisago
author_facet	Hirofumi Tsukasaki Shigeo Mori Hideyuki Morimoto Akitoshi Hayashi Masahiro Tatsumisago
author_sort	Hirofumi Tsukasaki
title	Direct observation of a non-crystalline state of Li2S–P2S5 solid electrolytes
title_short	Direct observation of a non-crystalline state of Li2S–P2S5 solid electrolytes
title_full	Direct observation of a non-crystalline state of Li2S–P2S5 solid electrolytes
title_fullStr	Direct observation of a non-crystalline state of Li2S–P2S5 solid electrolytes
title_full_unstemmed	Direct observation of a non-crystalline state of Li2S–P2S5 solid electrolytes
title_sort	direct observation of a non-crystalline state of li2s–p2s5 solid electrolytes
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9d6c6836c41540fbb4a2197e6d9829d0
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_version_	1718388909280329728

Direct observation of a non-crystalline state of Li2S–P2S5 solid electrolytes

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